C31231211113313121211113313331323133313331333132212111133133311222122321   >>    C3123121111331312121111331333132313331333133313221211113313331122212232   <<    C31231211113313121211113313331323133313331333132212111133133311222122323   >>      C31231211113313121211113313331323133313331333132212111133133311222122322   >>